CVE-2008-3263

highpriority · attend · 51EPSS 0.280 · 98 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · functional

Likely / severe?

28.0% (98th) EPSS

CVSS 7.8 · high

Is it mine?

104 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-28

The IAX2 protocol implementation in Asterisk Open Source 1.0.x, 1.2.x before 1.2.30, and 1.4.x before 1.4.21.2; Business Edition A.x.x, B.x.x before B.2.5.4, and C.x.x before C.1.10.3; AsteriskNOW; Appliance Developer Kit 0.x.x; and s800i 1.0.x before 1.2.0.1 allows remote attackers to cause a denial of service (call-number exhaustion and CPU consumption) by quickly sending a large number of IAX2 (IAX) POKE requests.

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 10 · impact 6.9

v2.07highAV:N/AC:L/Au:N/C:N/I:N/A:C/E:POCsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-399USprimary

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-32095Asterisk 1.6 IAX - 'POKE' Requests Remote Denial of Servicefunctional · exploit_db

affected products (104)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
asterisk asterisk= 0.1.0nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.1.1nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.1.10nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.1.11nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.1.12nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.1.2nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.1.3nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.1.4nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.1.5nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.1.6nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.1.7nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.1.8nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.1.9nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.1.9_1nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.2nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.3nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.4nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.5.0nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*
asterisk asterisk= 0.7.0nvdUScpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:*

showing 20 of 104

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2008-07-22modified 2026-06-16

related (3,726)

Related entries.

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+3721 more

references (24)

External citations — patches, advisories, analysis.

scry

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